AP Biology

In this session, Caroline reviews cell communication, signal transduction pathways, positive and negative feedback mechanisms, and the regulation of the cell cycle.  

Unit 4 - Cell Communication and Cell Cycle

Administration 1

Administration 2

Administration 3

AP Biology Exam Prep 2020 | Reviews + Free Study Help | Fiveable

Learn about the chemistry of life in unit 1 of the AP Biology course. We'll cover topics such as the structure of water, hydrogen bonding, elements of life, biological macromolecules, and nucleic acids. Prepare for the exam with these resources and you be on your way to crush the AP Bio exam!

Unit 1: Chemistry of Life

Chemistry of Life

Unit 2 of AP Biology covers cell structure and function. We'll go over key topics such as subcellular components, cell size, plasma membranes, membrane permeability, membrane transport, facilitated diffusion, tonicity, osmoregulation, and cell compartmentalization. 

Unit 2: Cell Structure and Function

Cell Structure and Function

Unit 3 of AP Biology is all about cellular energetics. Review topics such as enzyme structure, enzyme catalysis, environmental impacts on enzyme function, cellular energy, and photosynthesis. 

Unit 3: Cellular Energetics

Cellular Energetics

Learn about how cells communicate and reproduce in unit 4 of AP Biology. Our study guides for unit 4 cover cell communication, signal transduction, changes in signal transduction pathways, feedback, cell cycle basics, and regulation of the cell cycle. 

Unit 4: Cell Communication and Cell Cycle

Cell Communication and Cell Cycle

Get a solid understanding of heredity in unit 5 of the AP Biology exam. We'll cover topics such as meiosis, genetic diversity, mendelian genetics, non-mendelian genetics, environmental effects on phenotype, and chromosomal inheritance. 

Unit 5: Heredity

Heredity

Join us in exploring gene expression and regulation for the AP Biology exam. We'll cover all the topics in unit 6, such as DNA and RNA structure, replication, transcription, RNA processing, translation, regulation of gene representation, cell specialization, mutations, and biotechnology. 

Unit 6: Gene Expression and Regulation

Gene Expression and Regulation

Understanding natural selection is crucial to learning about how ecosystems function. Learn about unit 7 of AP Biology as we cover topics such as artificial selection, population genetics, hardy-weinberg equilibrium, evidence of evolution, common ancestry, continuing evolution, phylogeny, speciation, extinction, and origin of life on earth. 

Unit 7: Natural Selection

Natural Selection

Ecology is all about the interactions that organisms have amongst themselves and with their environment. In unit 8 of AP Biology, we'll cover topics such as responses to the environment, energy flow, population ecology, the effect of density of populations, community ecology, etc. 

Unit 8: Ecology

Ecology

The home for AP Biology reviews (including labs) as well as study strategies specific to AP Bio. You'll surely find a general resource that will improve your test-taking skills and help prepare for the exam.

General Review

Get ready to ace the multiple-choice questions of the AP Biology exam. We'll go over how the MCQs are structured, how to approach each question, and some last minute tips. By knowing the question types and the skills accessed, you'll be prepared in no time!

Multiple Choice Questions (MCQ)

Learn how to effectively answer free response questions for the AP Biology exam. We'll breakdown the FRQs and go over strategies on how to ace them. You'll be prepared with sample FRQ review videos, slides, and study guides! 

Free Response Questions (FRQ)

Blogs

Exam Reviews 2020

2019 Reviews

Get the answers to your questions from these AP Biology question and answer sessions. You'll be able to get rid of any uncertainties and feel more confident about the exam!

Q & A sessions

Get a comprehensive review of the AP Biology course. Learn every concept and unit to refresh your mind or even cram. These big reviews will serve as the ultimate preparation for the AP Biology exam. You'll feel ready for anything the test gives you and ace it in no time!

🎓

Summer College Program

🤝

College Server

🌶

My Programs

Study with Hours

📚

Browse Subjects

🗓️

Upcoming College Deadlines

Bookmarks

Unit 4 - Cell Communication and Cell Cycle

Related AP Biology Videos

Join us on Discord

📱 Stressed or struggling and need to talk to someone?

Talk to a trained counselor for free. It's 100% anonymous.

Text FIVEABLE to 741741 to get started.